Results 81 to 90 of about 35,438 (308)

Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

open access: yesAdvanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener   +7 more
wiley   +1 more source

Quantitative Photo‐Reforming of Biomass to CO Spurred by In Situ Protonation of Carbon Dioxide Radical Anions

open access: yesAngewandte Chemie, EarlyView.
A “two‐in‐one” photoreduction strategy enabled by electron‐rich yolk Cd species both remote from and adjacent to sulfur vacancies is delivered to be ultraselective for the reduction of O2 and •CO2− in situ formed on the shell Bi2S3 composition (hole) by water oxidation and oxidative C–C cleavage of various biomass organic acids, furnishing CO with > 99%
Tengyu Liu   +5 more
wiley   +2 more sources

Thermodynamic Evaluation of the Hybrid Combined Cycle Power Plant in the Valley of Mexico

open access: yesEnergies
Modern power generation aims to maximize the extraction of thermal energy from fossil fuels to produce electricity. Combined cycle power plants, leaders in efficiency, sometimes require an additional steam generator to compensate for insufficient exhaust
Ladislao Eduardo Méndez-Cruz   +5 more
doaj   +1 more source

New technology for heavy oil exploitation wastewater reused as boiler feedwater

open access: yesPetroleum Exploration and Development, 2008
Steam Assisted Gravity Drainage (SAGD) or non-SAGD heavy oil recovery process uses a considerable amount high-pressure steam and produces significant amount of oily wastewater.
Heins Bill, Xiao XIE, Deng-chao YAN
doaj   +1 more source

Ultrasonic phased array testing in the power generation industry : novel wedge development for the inspection of steam turbine blades roots [PDF]

open access: yes
The thesis presented herein comprises of the work undertaken to research novel methods of Phased array ultrasonic inspection of complex steam turbine blade roots as found in the power generation industry.
Charlesworth, Chris, Eng.D.
core  

Spatiotemporal phase-matching in capillary high-harmonic generation [PDF]

open access: yes, 2012
We present a simple phase-matching model that takes into account the full spatiotemporal nature of capillary high-harmonic generation. Spectra predicted from the model are compared to experimental results for a number of gases and are shown to reproduce ...
Rogers, Edward T.F.   +22 more
core   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

open access: yesAdvanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu   +4 more
wiley   +1 more source

COMMAND AND CONTROL STRATEGIES APPLIED TO HIGHPOWER STEAM GENERATORS [PDF]

open access: yesJournal of Sustainable Energy, 2015
The paper presents the analysis of the actual operation scheme existing for steam generator drum. Following the trend valid for forced circulation steam generator, it is proposed to replace the classical adjustment loops with new regulation scheme ...
DUINEA. A.M., MIRCEA P.M.
doaj  

Study on Thermodynamic Performance of Volume Expanding Evaporative Solar System Hybrid with Coal Fired Power Generation System under Varying Radiations

open access: yesZhongguo dianli, 2019
To avoid heat flux variations and non-uniform vapor-liquid distribution in parabolic collectors, the volume expanding evaporative solar steam generation system is proposed.
Lei FENG
doaj   +1 more source

Practical instructions relating to the construction and use of the steam engine indicator.

open access: yes, 1896
Pt. 1. General design and construction of steam engine indicators. Special design, construction and use of the Crosby indicator.--Pt. 2. Brief article on the generation of steam and correct methods for making engine and boiler tests ...
Crosby Steam Gauge and Valve Co. (Boston, Mass.)   +1 more
core  

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